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Sheaves and Duality in the Two-Vertex Graph Riemann-Roch Theorem

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 نشر من قبل Joel Friedman
 تاريخ النشر 2017
  مجال البحث
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For each graph on two vertices, and each divisor on the graph in the sense of Baker-Norine, we describe a sheaf of vector spaces on a finite category whose zeroth Betti number is the Baker-Norine Graph Riemann-Roch rank of the divisor plus one. We prove duality theorems that generalize the Baker-Norine Graph Riemann-Roch Theorem.



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